Tank Tests of Twin Seaplane Floats
A 1928 NASA technical report of tank tests on twin seaplane floats, compiled for aeronautical engineers studying hull form and take-off performance. The pictures are plain engineering line drawings: hull profile and station plans with dimensioned waterlines, and graphs of take-off speed against spray angle and load-to-displacement ratio curves. A designer might take from them the strict, measured look of technical drawing, with thin black lines, dense numerical labels and sparse grey-free layouts.
